Calculation of Shifting in Energy Levels for Ln3+ (Pr3+, Nd3+) Complex’s with Hetero cyclic Ligands in Solution state by using Optical Absorption Spectra. NextGen Chem. Discov. [Internet]. 2026 Aug. 25 [cited 2026 Oct. 25];2(3):15-22. Available from: https://novalexpress.com/NGCD/index.php/ngcd/article/view/41